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Equilibrium and kinetics of cadmium adsorption from aqueous solutions using untreated Pinus halepensis sawdust

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dc.contributor.author Semerjian L.
dc.contributor.editor
dc.date 2010
dc.date.accessioned 2017-10-04T11:04:32Z
dc.date.available 2017-10-04T11:04:32Z
dc.date.issued 2010
dc.identifier 10.1016/j.jhazmat.2009.08.074
dc.identifier.issn 3043894
dc.identifier.uri http://hdl.handle.net/10938/13660
dc.description.abstract Untreated Pinus halepensis sawdust has been investigated as an adsorbent for the removal of cadmium from aqueous solutions. Batch experiments were carried out to investigate the effect of pH, adsorbent dose, contact time, and metal concentration on sorption efficiency. The favorable pH for maximum cadmium adsorption was at 9.0. For the investigated cadmium concentrations (1-50 mg-L), maximum adsorption rates were achieved almost in the 10-20 min of contact. An adsorbent dose of 10 g-L was optimum for almost complete cadmium removal within 30 min from a 5 mg-L cadmium solution. For all contact times, an increase in cadmium concentration resulted in decrease in the percent cadmium removal (100-87percent), and an increase in adsorption capacity (0.11-5.36 mg-g). The equilibrium adsorption data were best fitted with the Freundlich isotherm (R2 = 0.960). The kinetics of cadmium adsorption was very well described by the pseudo-second-order kinetic model (R2 andgt; 0.999). © 2009 Elsevier B.V. All rights reserved.
dc.format.extent
dc.format.extent Pages: (236-242)
dc.language English
dc.publisher AMSTERDAM
dc.relation.ispartof Publication Name: Journal of Hazardous Materials; Publication Year: 2010; Volume: 173; no. 41642; Pages: (236-242);
dc.source Scopus
dc.title Equilibrium and kinetics of cadmium adsorption from aqueous solutions using untreated Pinus halepensis sawdust
dc.type Article
dc.contributor.affiliation Semerjian, L., Department of Civil and Environmental Engineering, American University of Beirut, P.O. Box 11-0236, Beirut, Lebanon
dc.contributor.authorAddress Semerjian, L.; Department of Civil and Environmental Engineering, American University of Beirut, P.O. Box 11-0236, Beirut, Lebanon; email: ls07@aub.edu.lb
dc.contributor.authorCorporate University: American University of Beirut; Faculty: Faculty of Engineering and Architecture; Department: Civil and Environmental Engineering;
dc.contributor.authorDepartment Civil and Environmental Engineering
dc.contributor.authorDivision
dc.contributor.authorEmail ls07@aub.edu.lb
dc.contributor.authorFaculty Faculty of Engineering and Architecture
dc.contributor.authorInitials Semerjian, L
dc.contributor.authorOrcidID
dc.contributor.authorReprintAddress Semerjian, L (reprint author), Amer Univ Beirut, Dept Civil and Environm Engn, POB 11-0236, Beirut, Lebanon.
dc.contributor.authorResearcherID
dc.contributor.authorUniversity American University of Beirut
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dc.description.citedCount 45
dc.description.citedTotWOSCount 45
dc.description.citedWOSCount 44
dc.format.extentCount 7
dc.identifier.articleNo
dc.identifier.coden JHMAD
dc.identifier.pubmedID 19735976
dc.identifier.scopusID 71749117679
dc.publisher.address PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
dc.relation.ispartOfISOAbbr J. Hazard. Mater.
dc.relation.ispartOfIssue 41642
dc.relation.ispartofPubTitle Journal of Hazardous Materials
dc.relation.ispartofPubTitleAbbr J. Hazard. Mater.
dc.relation.ispartOfVolume 173
dc.source.ID WOS:000273135600032
dc.type.publication Journal
dc.subject.otherAuthKeyword Adsorption
dc.subject.otherAuthKeyword Cadmium
dc.subject.otherAuthKeyword Isotherms
dc.subject.otherAuthKeyword Kinetic models
dc.subject.otherAuthKeyword Pinus halepensis sawdust
dc.subject.otherChemCAS cadmium, 22537-48-0, 7440-43-9
dc.subject.otherChemCAS Cadmium, 7440-43-9
dc.subject.otherChemCAS Solutions
dc.subject.otherChemCAS Water, 7732-18-5
dc.subject.otherIndex Adsorbent dose
dc.subject.otherIndex Adsorption capacities
dc.subject.otherIndex Adsorption rates
dc.subject.otherIndex Aqueous solutions
dc.subject.otherIndex Batch experiments
dc.subject.otherIndex Cadmium adsorption
dc.subject.otherIndex Cadmium removal
dc.subject.otherIndex Contact time
dc.subject.otherIndex Effect of pH
dc.subject.otherIndex Equilibrium adsorption
dc.subject.otherIndex Freundlich isotherm
dc.subject.otherIndex Kinetic models
dc.subject.otherIndex Metal concentrations
dc.subject.otherIndex Pinus halepensis sawdust
dc.subject.otherIndex Pseudo-second-order kinetic models
dc.subject.otherIndex Sorption efficiency
dc.subject.otherIndex Atmospheric temperature
dc.subject.otherIndex Cadmium
dc.subject.otherIndex Chemicals removal (water treatment)
dc.subject.otherIndex Dyes
dc.subject.otherIndex Isotherms
dc.subject.otherIndex Kinetic theory
dc.subject.otherIndex Metal recovery
dc.subject.otherIndex pH effects
dc.subject.otherIndex Solutions
dc.subject.otherIndex Adsorption
dc.subject.otherIndex adsorbent
dc.subject.otherIndex cadmium
dc.subject.otherIndex adsorption
dc.subject.otherIndex aqueous solution
dc.subject.otherIndex cadmium
dc.subject.otherIndex concentration (composition)
dc.subject.otherIndex experimental study
dc.subject.otherIndex phase equilibrium
dc.subject.otherIndex reaction kinetics
dc.subject.otherIndex adsorption kinetics
dc.subject.otherIndex aqueous solution
dc.subject.otherIndex article
dc.subject.otherIndex chemical reaction kinetics
dc.subject.otherIndex controlled study
dc.subject.otherIndex equilibrium constant
dc.subject.otherIndex feasibility study
dc.subject.otherIndex heavy metal removal
dc.subject.otherIndex intermethod comparison
dc.subject.otherIndex isotherm
dc.subject.otherIndex pH
dc.subject.otherIndex pine
dc.subject.otherIndex process optimization
dc.subject.otherIndex sawdust
dc.subject.otherIndex waste water management
dc.subject.otherIndex Adsorption
dc.subject.otherIndex Algorithms
dc.subject.otherIndex Cadmium
dc.subject.otherIndex Diffusion
dc.subject.otherIndex Hydrogen-Ion Concentration
dc.subject.otherIndex Kinetics
dc.subject.otherIndex Models, Statistical
dc.subject.otherIndex Pinus
dc.subject.otherIndex Solutions
dc.subject.otherIndex Thermodynamics
dc.subject.otherIndex Water
dc.subject.otherIndex Pinus halepensis
dc.subject.otherKeywordPlus HEAVY-METAL IONS
dc.subject.otherKeywordPlus WASTE-WATER
dc.subject.otherKeywordPlus METHYLENE-BLUE
dc.subject.otherKeywordPlus REMOVAL
dc.subject.otherKeywordPlus BIOSORPTION
dc.subject.otherKeywordPlus SORPTION
dc.subject.otherKeywordPlus BIOMASS
dc.subject.otherKeywordPlus PB(II)
dc.subject.otherKeywordPlus SYLVESTRIS
dc.subject.otherKeywordPlus MECHANISM
dc.subject.otherWOS Engineering, Environmental
dc.subject.otherWOS Engineering, Civil
dc.subject.otherWOS Environmental Sciences
dc.identifier.doi http://dx.doi.org/10.1016/j.jhazmat.2009.08.074


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